feat: #570 write eslint plugin to detect common mistakes

[ascott18]

Fixes #570

[Copilot]

Pull request overview

Adds a first-party eslint-plugin-coalesce package to help Coalesce Vue projects catch common foot-guns during linting, and wires it into the Vue starter template, playground, docs, and release pipelines.

Changes:

• Introduces src/eslint-plugin-coalesce with three rules (no-load-before-auto-load, no-sort-in-computed, no-static-router-import) plus tests/build config.
• Enables the plugin’s recommended flat config in the Vue template and the Vue3 playground.
• Adds documentation + CI build/publish support for the new npm package.

Reviewed changes

Copilot reviewed 22 out of 23 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
templates/Coalesce.Vue.Template/content/Coalesce.Starter.Vue.Web/package.json	Adds eslint-plugin-coalesce to the starter template devDependencies.
templates/Coalesce.Vue.Template/content/Coalesce.Starter.Vue.Web/eslint.config.mjs	Enables coalesce.configs.recommended in the template ESLint flat config.
src/eslint-plugin-coalesce/vitest.config.ts	Adds Vitest config for the new plugin package.
src/eslint-plugin-coalesce/tsconfig.json	Adds TS build config for compiling the plugin to lib/.
src/eslint-plugin-coalesce/test/rules/no-static-router-import.test.ts	Tests for preventing static router imports in .vue files.
src/eslint-plugin-coalesce/test/rules/no-sort-in-computed.test.ts	Tests for preventing in-place .sort() inside computed().
src/eslint-plugin-coalesce/test/rules/no-load-before-auto-load.test.ts	Tests for preventing $load() alongside auto-load APIs in same scope.
src/eslint-plugin-coalesce/src/rules/no-static-router-import.ts	Implements router import detection rule.
src/eslint-plugin-coalesce/src/rules/no-sort-in-computed.ts	Implements computed+sort detection rule.
src/eslint-plugin-coalesce/src/rules/no-load-before-auto-load.ts	Implements $load() + auto-load co-usage detection rule.
src/eslint-plugin-coalesce/src/index.ts	Declares plugin entrypoint + configs.recommended.
src/eslint-plugin-coalesce/README.md	Adds package-level installation/usage docs and rule descriptions.
src/eslint-plugin-coalesce/package.json	Defines publishable npm package metadata/scripts/exports.
src/eslint-plugin-coalesce/.gitignore	Ignores build output (lib/).
playground/Coalesce.Web.Vue3/package.json	Adds the plugin as a dev dependency for the playground.
playground/Coalesce.Web.Vue3/eslint.config.mjs	Enables coalesce.configs.recommended in the playground ESLint config.
package-lock.json	Updates lockfile for workspace-linked eslint-plugin-coalesce.
docs/topics/eslint-plugin.md	Adds docs page describing plugin setup and rules.
docs/.vitepress/config.mts	Adds the new ESLint plugin doc page to the topics nav.
CHANGELOG.md	Notes addition of eslint-plugin-coalesce and included rules.
AGENTS.md	Adds build/test commands for the new package.
.github/workflows/part-publish.yml	Publishes eslint-plugin-coalesce tgz in npm publish workflow.
.github/workflows/part-build.yml	Builds/tests/packs the new plugin and includes it in template validation inputs.

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[Copilot]

The autofix guidance in this message becomes incorrect when autoMethod is $startAutoLoad, since $startAutoLoad requires a Vue instance as its first argument ($startAutoLoad(vue, options)) and cannot be called as .$startAutoLoad({ immediate: true }). Consider using a separate message for $startAutoLoad (e.g., suggest passing { immediate: true } as the second argument) or always recommending $useAutoLoad({ immediate: true }) when applicable.

[ascott18]

@copilot apply changes based on this feedback

[Copilot]

Fixed in 7b49c05. Added a separate useImmediateStartAutoLoad message that correctly documents the two-argument signature: $startAutoLoad(vue, { immediate: true }), while the existing useImmediate message now targets only $useAutoLoad.